Note that non-power-of-2 bytes means it's impossible to use mere bitwise operations when computing bit indices. Instead, you have to use integer division (ick!)

Note that non-power-of-2 bytes means it's impossible to use mere bitwise operations when computing bit indices. Instead, you have to use integer division (ick!). There are probably lots of similar problems; this is just one that I thought of while writing recent code.